Call me stupid, but if what your dog coughed up was food..., what kind of food? Maybe you should avoid giving your dog that kind of food, or make sure it's been cut up into smaller pieces. Maybe look for food designed for smaller dogs. Eventually, you are going to have to find a Vet, but in the meantime, addressing the simple quick solution may solve the problem.

__________________
Mark _______________________________
2001 X5 4.4i topaz blue/sand Sport, complete Dinan S2 , hitch, V1, tint, BSW Stage 1, Alpine INA-W910BT
___________
Life is not fair!
You can't protect people from their own stupidity!
Laughter makes life worth living